[Coco] Need a FD 502 controller that can accept 28 pin roms

[Little John]

The FD-501 drives will work with the FD-502 controller (or pretty much any 
coco controller). I may be mistaken, but I believe that the FD-502, although 
having a 28-pin socket, is still only wired for an 8K eprom and the 
additional address line will still need to be hacked into the socket with a 
jumper wire. Can anyone else confirm this?
-John
----- Original Message ----- 
From: "Todd Wallace" <dragonbytes at cox.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Tuesday, October 12, 2010 11:07 PM
Subject: [Coco] Need a FD 502 controller that can accept 28 pin roms


> Hey all,
>
> I am trying to get a floppy controller that will allow me to replace its 
> rom with my HDB-DOS rom.  The controller I have now is the FD501 but it's 
> rom is only 24 pins.  The HDBDOS eprom i have is 28 pins.  I heard the 
> FD502 has a 28pin rom socket.  Anyone got one for sale? my floppy drives 
> are FD501 also so the controller would need to be compatible with that. 
> Any help/info is appreciated.
>
> - Todd Wallace
>
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